Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes

Holt, J. K.. (2006) Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes. Science, 312 (5776). p. 1034. ISSN 0036-8075

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We report gas and water flow measurements through microfabricated membranes in which aligned carbon nanotubes with diameters of less than 2 nanometers serve as pores. The measured gas flow exceeds predictions of the Knudsen diffusion model by more than an order of magnitude. The measured water flow exceeds values calculated from continuum hydrodynamics models by more than three orders of magnitude and is comparable to flow rates extrapolated from molecular dynamics simulations. The gas and water permeabilities of these nanotube-based membranes are several orders of magnitude higher than those of commercial polycarbonate membranes, despite having pore sizes an order of magnitude smaller. These membranes enable fundamental studies of mass transport in confined environments, as well as more energy-efficient nanoscale filtration.

Item Type: Article
Additional Information: From [Holt, Jason K., et al. "Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes." Science 312 (2006): 1034 - 1037. ]. Reprinted with permission from AAAS.
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanotubes > Carbon nanotubes
Collections: Nanomanufacturing Research Collection
Related URLs:
Depositing User: Rebecca Reznik-Zellen
Date Deposited: 05 Nov 2009 20:38
Last Modified: 05 Nov 2009 20:38

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